feat()

.vscode/launch.json

@@ -7,7 +7,7 @@
       "request": "launch",
       "mode": "auto",
       "program": "${workspaceFolder}/cmd/neva",
-      "cwd": "${workspaceFolder}/e2e/errors_lift",
+      "cwd": "${workspaceFolder}/e2e/for_with_range_and_if",
       "args": ["run", "--trace", "main"]
     },
     {

e2e/errors_lift/e2e_test.go

@@ -14,7 +14,7 @@ func Test(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(
 		t,
-		"Friday\n",
+		"42\n",
 		string(out),
 	)
 

e2e/errors_lift/main/main.neva

@@ -1,15 +1,21 @@
-import { fmt, errors }
+import {
+    fmt
+    errors
+}
 
+// errors.Lift wraps handler so it behaves like a node with error outport.
 def Main(start any) (stop any) {
-    lifted errors.Lift<any, any>{Handler}
+    lift errors.Lift<any, any>{Handler}
     panic Panic
     ---
-    :start -> lifted
-    lifted:res -> :stop
-    lifted:err -> panic
+    :start -> lift
+    lift:res -> :stop
+    lift:err -> panic
 }
 
-// Handler doesn't have an error outport, because it doesn't do anything.
+// Handler doesn't have error outport.
 def Handler(data any) (res any) {
-    :data -> :res
+    println fmt.Println<any>
+    ---
+    :data -> '42' -> println -> :res
 }